Q: What are the prime factors of the number 220,152,546?

 A: 2, 3, 311, 13109

Why are those the prime factors of the number 220,152,546?

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 220,152,546

220,152,546
Factor Arrows
2110,076,273
Factor Arrows
336,692,091
Factor Arrows
312,230,697
Factor Arrows
34,076,899
Factor Arrows
31113,109

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, 311, 13109

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 311 x 13,109 = 220,152,546

This can also be written as 21 x 33 x 3111 x 13,1091 = 220,152,546

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


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