2 x 3 x 5 x 13 = 390
No exponents necessary.
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390 = 2*3*5*13
The factorizations of both numbers use 2 and 5, and each has only two other factors (for 220, 2 and 11 - for 390, 3 and 13, which represent the primes immediately following the ones for 220).
The prime factors of 390 are: 2, 3, 5, and 13.is 390 a prime number
factorization: 78=2*3*13 65=5*13 LCM=2*3*5*13=390
2 x 3 x 5 x 13 = 390