The number 1 followed by 42 zeros (10⁴²) is called one tredecillion in the short scale used in the US, Canada, and Australia.
tredecillion. a cardinal number represented in the U.S. by 1 followed by 42 zeros, and in Great Britain by 1 followed by 78 zeros.
Yes, an octillion is a very large number, representing 1 followed by 27 zeros (102710 to the 27th power1027) in the short scale (used in the U.S., Canada, and France) or 1 followed by 48 zeros (104810 to the 48th power1048) in the long scale (used in Britain and Germany). It's part of the naming system for large numbers that continues from million, billion, trillion, and so on, used in science and finance, although powers of ten are more common in science.
The number 12,345,678,910,987,654,321 is indeed prime. It consists of 20 digits and is really easy to remember: count to 10 and then count backward again until you get to 1. But it has been unclear whether other primes take the palindromic form of starting at 1, ascending to the number n and then descending again.
A unit of quantity equal to 1051 (1 followed by 51 zeros).
Due to the superstitious significance of the numbers it contains, the palindromic prime 1000000000000066600000000000001 is known as Belphegor's Prime, named after Belphegor, one of the seven princes of Hell.
The number 2099 has only two factors, 1 and 2099, so it meets the definition of a prime number.
Using this algorithm with hand computations on paper, Lucas showed in 1876 that the 39-digit number (2127 – 1) equals 170,141,183,460,469,231,731,687,303,715,884,105,727, and that value is prime. Also known as M127, this number remains the largest prime verified by hand computations.
A vigintillion is a massive number, most commonly defined in the short scale as 1 followed by 63 zeros (106310 to the 63rd power1063), making it one thousand novemdecillion, though historically and in the long scale (used in some European countries), it could mean 1 followed by 120 zeros (1012010 to the 120th power10120). The modern standard in English-speaking countries uses the short scale, where a vigintillion is 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,0001 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 000 comma 0001,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.
One trillion dollars is equivalent to a thousand billion, or million dollars multiplied by millions. A trillion is a 1 with 12 zeros after it, represented as 1,000,000,000,000 or 10¹². A million can be denoted as 106, or 1,000,000, and a billion can be denoted as 1 thousand million, or 1,000,000,000 (109).
Quattuorvigintillion. A unit of quantity equal to 1075 (1 followed by 75 zeros).
vigintillion. a cardinal number represented in the U.S. by 1 followed by 63 zeros, and in Great Britain by 1 followed by 120 zeros.
noun. tre·de·cil·lion ˌtrē-di-ˈsil-yən. often attributive. US : a number equal to 1 followed by 42 zeros see Table of Numbers. also, British : a number equal to 1 followed by 78 zeros see Table of Numbers.
Highlights: Definition: A quattuorvigintillion equals 107510^{75}1075, or a 1 followed by 75 zeros.
For example, entering either 1,000,000,000,000 or 1.0e12 will tell you ' The 1,000,000,000,000th prime is 29,996,224,275,833.
About the Number 1999
1999 is the natural number that is succeeded by 1998 and preceded by 2000. 1999 in words – One Thousand Nine Hundred and Ninety Nine. Is 1999 an odd number? – Yes.
No, 731 is not a prime number. The number 731 is divisible by 1, 17, 43, 731. For a number to be classified as a prime number, it should have exactly two factors. Since 731 has more than two factors, i.e. 1, 17, 43, 731, it is not a prime number.
Belphegor's prime. Belphegor's prime is the palindromic prime number 1000000000000066600000000000001 (1030 + 666 × 1014 + 1), a number which reads the same both backwards and forwards and is only divisible by itself and one.
Thus 0 = 2 x 0, 2 = 2 x 1, 4 = 2 x 2, and so on. All odd numbers can be expressed in the form 2n + 1, thus 1 = (2 x 0) + 1, 3 = (2 x 1) + 1, 5 = (2 x 2) + 1, etc. Zero cannot be odd, because there is no whole number n such that 2n + 1 = 0.
The number 2027 has only two factors, 1 and 2027, so it meets the definition of a prime number.
Numbers never end, there are numbers after trillion - quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion, undecillion, duodecillion, tredecillion, quadecillion, quidecillion, sexdecillion, sepdecillion, octodecillion, nonvingontillion, vigontillion, centillion, and many more.