All the prime numbers between 230 and 260 are; 233, 239, 241, 251, and 257.
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22*5*13 = 260
The prime factorization of 260 in exponential form is written as: 22 x 5 x 13
Well, honey, the least common multiple (LCM) of 260 and 390 is 780. You see, 260 is 2 times 2 times 5 times 13, while 390 is 2 times 3 times 5 times 13. So, the LCM is just the product of all the unique prime factors with the highest power they appear in either number. Easy peasy lemon squeezy!
√260 . . 260 can be factored as 4 x 65, so we can now put :- √260 = √(4 x 65) = √(2² x 65) = 2√65. Note that 65 is the product of two prime numbers (5 x 13) so the expression cannot be further simplified.
260 + ((0 +42 + 45)/3) = 260 + 87/3 = 260 + 29 = 289