Q: What are the prime factors of the number 277,612,220?

 A: 2, 5, 61, 313, 727

Why are those the prime factors of the number 277,612,220?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 277,612,220

277,612,220
Factor Arrows
2138,806,110
Factor Arrows
269,403,055
Factor Arrows
513,880,611
Factor Arrows
61227,551
Factor Arrows
313727

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 61, 313, 727

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 61 x 313 x 727 = 277,612,220

This can also be written as 22 x 51 x 611 x 3131 x 7271 = 277,612,220

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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