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22 x 7
33 ft.
3 x 29 = 87
78 = 2 * 3 * 13
46 = 23 x 2.
1450 as a product of primes = 2 * 5 * 5 * 29
5x5x3
20 as a product of primes = 2 * 2 * 5
5*3
2 * 33 * 72
2*2*2*5*!
14 = 2 x 7
It is: 7 times 13 = 91
22 = 2 x 11