1.write 215 as a product ot its prime factors.
2.use index notation to write 248 as a product of its prime factors.
3.use index notation to write 324 as a product of its prime factors.
maths問題
2011-08-15 2:43 am
回答 (1)
2011-08-15 4:14 am
✔ 最佳答案
1 215 = 5 * 432 248 = 2 * 2 * 2 * 31 = 2^3 * 31
3 324 = 2 * 2 * 3 * 3 * 3 * 3 = 2^2 * 3^4
4 1 + 2 + 3 + 4 + 6 + 8 + 12 + 24 - 44 = 16
5 63 = 3 * 3 * 7
So, the two possible numbers are 9 and 126
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