Q: What are the prime factors of the number 251,041,194?

 A: 2, 3, 47, 32971

Why are those the prime factors of the number 251,041,194?

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 251,041,194

251,041,194
Factor Arrows
2125,520,597
Factor Arrows
341,840,199
Factor Arrows
313,946,733
Factor Arrows
34,648,911
Factor Arrows
31,549,637
Factor Arrows
4732,971

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, 3, 47, 32971

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 47 x 32,971 = 251,041,194

This can also be written as 21 x 34 x 471 x 32,9711 = 251,041,194

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


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