Prime numbers

Just found this very interesting article on BBC about prime numbers and how cycles of life in insects are corresponding to prime numbers, whereby a reader commented the same concept was already discussed in a book called “The music of the Primes”.

There is also this 617 digit number and nobody has been able to find the 2 prime numbers that divide it. Just as I had been asked by someone what is the longest number in the world, I shall seek to introduce this one:

25,195,908,475,657,893,494,027,183,240,048,398,571,429,282,126,204,032,027,777,137,836,043,662,020,707,595,556,264,018,525,880,784,406,918,290,641,249,515,082,189,298,559,149,176,184,502,808,489,120,072,

844,992,687,392,807,287,776,735,971,418,347,270,261,896,375,014,971,824,691,165,077,613,379,859,095,700,097,330,459,748,808,428,401,797,429,100,642,458,691,817,195,118,746,121,515,172,654,632,282,216,869,

987,549,182,422,433,637,259,085,141,865,462,043,576,798,423,387,184,774,447,920,739,934,236,584,823,824,281,198,163,815,010,674,810,451,660,377,306,056,201,619,676,256,133,844,143,603,833,904,414,952,634,

432,190,114,657,544,454,178,424,020,924,616,515,723,350,778,707,749,817,125,772,467,962,926,386,356,373,289,912,154,831,438,167,899,885,040,445,364,023,527,381,951,378,636,564,391,212,010,397,122,822,120,

720,357

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