42=2 ×3 × 7 6 ×7 OR 60=2^2*3*5 OR 6 ×2 ×5 (2 of )2 42 60 66 66=2 × 3 × 11 6 × 11 3 21 30 33 OR 2 correct Factor Trees 7 10 11M1 Implied by correct answer Allow if they thenfind HCF in error 反馈...
LCM of 42 and 70 is the smallest number among all common multiples of 42 and 70. The methods to find the LCM of 42, 70 are explained here in detail.
LCM of 40, 50 and 60 is the smallest number among all common multiples of 40, 50 and 60. The methods to find the LCM of 40, 50, 60 are explained here in detail.
c) Determine the product of the factors from Step (b) $$ 2 \cdot 3 ^ { 2 } \cdot 5 ^ { 2 } \cdot 7 = 2 \cdot 9 \cdot 2 5 \cdot 7 = 3 1 5 0 $$ T hus, 3150 is the least common multiple of 315 and 450. It is the smallest natural number that is evenly divisible...
Learn Properties of HCF and LCM and the relation between LCM and HCF of natural numbers with examples. Formula to find HCF and LCM of fractions at BYJU'S.
Find the HCF and LCM of the following pairs of numbers.36 and 4566 and 132 12, 18 and 20 相关知识点: 试题来源: 解析 \left( 36,45 \right)=9\left( 66,132 \right)=66\left( 12,18,20 \right)=2\left[ 36,45 \right]=180\left[ 66,132 \right]=132\left[ 12,18,20 \right]=...
(i) Find the smallest number that is completely divisible by 28 and 42. (ii) Find the largest number that can divide 28 and 42 completely. Solution: Question 7. Find the L.C.M. of 140 and 168. Use the L.C.M. obtained to find the H.C.F. of the given numbers. ...
给你一个n,要求给出两个整数a和b,使得a+b=n且lcm(a,b)最小。 思路 结论:答案是k和n-k,k为n的最大真因子。 证明:假设a<=b,则lcm>=b,取最小则自然是lcm==b,lcm>b,最小的就是2b,2b>n故舍去,所以我们要构造lcm=b的解。 lcm=b故a整除b,则b=ma,所以a+ma=n,故a整除n。现在lcm=b,a是...
14. 两个数的最大公因数和最小公倍数的乘积为 14. The product of the HCF and LCM of two numbers is384。若这两个数
1.一个数是可以拆分成多个质因子相乘,如果一个数是许多个数字的最大公因数,那么最大公因数对应质因子位置上面的指数应该是这些质因子对应指数的最小值;最小公倍数则是对应质因子位置上面的指数最大值 2.容斥定理:以3个集合A,B,C为例,我们如果需要求出A ...