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Find out the lowest number which is exactly divisible by 36 , 45 , 63 , and 80. |
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Answer» To FIND it, first list out the prime factors of each NUMBER.36: 2, 2, 3, 345: 3, 3, 563: 3, 3, 780: 2, 2, 2, 2, 5The LCM will be that number whose prime factors include each prime factor above at their greatest number of occurences for any number.LCM: 2, 2, 2, 2, 3, 3, 5, 7Now multiply. I find it useful to reorder these numbers and multiply numbers in sequence which MAKE the mental math WORK BETTER, not harder(2×5) ×(3×3) ×(2×2×2)×710 × 9 × 8 × 790 × 56. (or 10! - 6!)5040 <--- That's your answer. I'm tired. u test it.mark as brainlist |
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